# A 4-bit preset table UP counter has preset input 0101.the preset operation takes place as soon as the counter becomes maximum 11 11 .The modulus of the counter is

1.  5

2.  10

3.  11

4.  15

4

10

Explanation :
No Explanation available for this question

# In AM, if modulation index is more than 100% then

1.  power of the wave increases

2.  efficiency of transmission increases

3.  the wave gets distorted

4.  band-width increases

4

the wave gets distorted

Explanation :
No Explanation available for this question

# A mod-2 counter followed by a mod-5 counter is

1.  same as a mode-5 counter followed by a mod-2 counter

3.  a mod-7 counter

4.  none of these

4

same as a mode-5 counter followed by a mod-2 counter

Explanation :
No Explanation available for this question

# The maximum power efficiency of a Am modulator

1.  25%

2.  50%

3.   75%

4.  100%

4

50\%

Explanation :
No Explanation available for this question

# An analog voltage is in the range of 0 to 8 V is divided in eight equal intervals for conversion to 3-bit digital output. The maximum quantization error is

1.  0 V

2.  0.5 V

3.  1 V

4.  2 V

4

1 V

Explanation :
No Explanation available for this question

# A transmission line whose characteristic impedance is a pure resistance

1.  must be a lossless line

2.  must be a distortion less line

3.  must not be a lossless line

4.   may not be a distortion less line

4

must not be a lossless line

Explanation :
No Explanation available for this question

# The resolution of a D/A converter is approximately o.4% of its full-scale range. It is

1.  an 8- bit converter

2.  an 10- bit converter

3.  an 12- bit converter

4.  an 16- bit converter

4

an 8- bit converter

Explanation :
No Explanation available for this question

# Two dissimilar antennas having their maximum directivities equal

1.  must have their beam widths also equal

2.  cannot have their beam widths equal because they are dissimilar antennas

3.  may not necessarily have their maximum power gains equal

4.  must have their effective aperture areas (capture areas) also equal

4

may not necessarily have their maximum power gains equal

Explanation :
No Explanation available for this question

# The data-bus width of a 204× 8 bits is

1.  8

2.  10

3.  12

4.  16

4

8

Explanation :
No Explanation available for this question

# Probability density function of thermal noise is

1.  Binomial

2.  Gaussian

3.  Poisson

4.  none of these

4